CN109006690A - 一种牛蛙幼蛙速生优质养殖方法 - Google Patents
一种牛蛙幼蛙速生优质养殖方法 Download PDFInfo
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- CN109006690A CN109006690A CN201811208850.5A CN201811208850A CN109006690A CN 109006690 A CN109006690 A CN 109006690A CN 201811208850 A CN201811208850 A CN 201811208850A CN 109006690 A CN109006690 A CN 109006690A
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- froglet
- feed
- bullfrog
- frog
- pond
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Abstract
本发明公开了一种牛蛙幼蛙速生优质养殖方法,包括以下步骤:1、幼蛙池搭建与栽植水生植物;2、蛙卵孵化与管理;3、放养幼蛙苗及饲料喂食管理;4、幼蛙分养及成蛙出池;本发明通过采用低频超声波处理蛙卵,激活了蛙卵活性,缩短了蛙卵孵化时间,提高了蛙卵孵化成功率;通过投入牛蛙蝌蚪健壮液,使牛蛙蝌蚪在前期获得健康充足的营养,为牛蛙幼苗的成长发育打下良好基础;通过饲喂适合牛蛙幼蛙不同生长阶段的饲料,充分发挥饲料中各成分的营养作用,从而驯化幼蛙摄食静态饲料,节约了饲喂成本;通过栽植具有净水、遮阴作用的凤眼莲,净化了水体环境,降低了牛蛙幼蛙的患病几率,从各方面增加了牛蛙产量。
Description
技术领域
本发明涉及水产养殖领域,尤其涉及一种牛蛙幼蛙速生优质养殖方法。
背景技术
牛蛙(Rana catesbiana)属于两栖纲、无尾目、蛙科的一种水陆两栖类动物,因其雄性鸣叫声如牛而得名,是一种世界上最著名的大型食用蛙类。牛蛙因原产于北美洲和墨西哥等地,所以又名美国水蛙,个体硕大、生长快、产量高,目前己遍及世界各大洲;中国的牛蛙养殖地主要集中分布在广东、福建、浙江、江西、海南、安徽、江苏、湖南、湖北、四川等省地,是各地食用蛙中的主要养殖品种。牛蛙因其具有较高的经济价值,自50年代末首次引入我国后,就深受消费者喜爱。牛蛙肉质细嫩、味道鲜美、营养丰富,并且具有一定的药用价值。养殖牛蛙具有生长速度快、高产高效等优点,在我国经过近20年的快速发展之后,现已经成为特种水产养殖的主要品种之一。
牛蛙全身都是宝,是集食用、药用和皮用于一身的大型经济蛙类。牛蛙肉是上乘美味食品和高级的保健药膳,洁白细嫩,味道鲜美,营养丰富。与鸡、鸭、猪、牛、羊肉相比较,是一种高蛋白、低脂肪、低胆固醇的健康食品;同时,相关化学解剖后发现,牛蛙肉中富含钙、磷、铁、硫胺素、核黄素、烟酸等多种微量营养素;从国学中医上来说,牛蛙肉还有很高的药用价值,其性平、味甘,具有滋补解毒的功效,夏季食用可避免皮肤生疮毒,手术患者食用可促进伤口愈合,肝、肺病患者食用可明显增进食欲。牛蛙的皮、骨骼、内脏中含有丰富的胶原蛋白,是较好的食品添加剂和食疗滋补品,此外,牛蛙皮还可提炼高级鱼胶。牛蛙的料肉比为1:1,相对于其他水产养殖动物1.5:1的料肉比来说,具有明显优势;蛙油可制优质油脂,牛蛙脑垂体是高效的催产激素,牛蛙的下脚料可制优质饲料。牛蛙还是良好的实验动物,是忠实的植保卫士。人工养殖牛蛙生长快,产量高,成本低,价值高,具有很高的经济效益。
牛蛙主要易感病害有烂皮病、红腿病、肠胃炎病以及爆发性细菌性蛙病等疾病;其中烂皮病主要症状是牛蛙头部失去光泽,体色发黑,出现白斑,接着表皮脱落腐烂,露出背肌,眼球变白,牛蛙躲藏在阴暗处,不吃不动,不肯下水,死亡率较高,主要病因是由缺乏维生素A及细菌感染引起;红腿病的主要症状是幼蛙腿内侧、内股、和腹下皮肤有红点、红斑,病蛙低头伏地,或潜藏在水中不动不食,死亡率高,其主要由细菌感染所致,与放养密度大,水质恶化有关;病蛙患肠胃炎病后,游动缓慢,喜钻泥,伏于池边不动,主要是由于吃了腐败食物引起的消化道细菌感染;爆发性细菌性蛙病主要是由于水质恶化引起的细菌急性感染,往往在幼蛙变态后的发生,传染性强、时间短、死亡率高。因此,加强水体管理,移栽种植具有净化水质、杀菌消毒作用的水生植物,将成为牛蛙幼蛙养殖过程中,防控细菌性重点。
超声波相关研究表明:超声波具有医学生物效应,一定频率的超声波辐射能增强鱼虾体内酶的活性,提高鱼虾受精卵的孵化和促进幼苗的生长发育等,合适的地轻度超声波辐射后可以提高鱼虾的生长速度、增强鱼虾的免疫功能。不同频率的超声波辐射会对鱼虾幼苗消化率产生一定的影响,这可能是由于低频超声波辐射会改变鱼虾体内某些消化酶的构象来改变其催化活性,从而改变了酶分子与底物的结合程度,来影响鱼虾幼苗的消化;但目前关于超声波对牛蛙养殖的影响研究报道甚少见公开报道。
凤眼莲(Eichhorniacrassipes)又名凤眼蓝、水葫芦、水浮莲等,是一种多年生浮水草本,须根发达,棕黑色。茎极短,匍匐枝淡绿色。广泛分布于中国长江、黄河流域及华南各省的水塘、沟渠及稻田中。凤眼蓝对氮、磷、钾、钙等多种元机元素有较强的富集作用,其中对大量元素钾的富集作用尤为突出。可用于治理水体过肥化,能起到净化水体的作用。凤眼蓝花和嫩叶可以直接食用,其味道清香爽口,并有润肠通便的功效。凤眼蓝柔软多汁、鲜嫩可口、营养丰富,干物质中主要是粗蛋白、粗脂肪、粗纤维等,可作为鸡、鸭、鹅、鱼、猪的优良饲料,其既能提高饲料利用率,还可杀灭寄生虫。凤眼莲在中医上具有清热解暑,消炎杀菌的功效。
发明内容
本发明针对背景技术中存在的牛蛙幼蛙养殖过程中的行业问题,采用超声波辅助孵化及牛蛙蝌蚪健壮液处理幼蛙,提高了其孵化成功率和幼蛙健壮程度,其后饲喂适合牛蛙幼蛙各生长阶段的饲料,充分发挥了饲料中的各营养成分的作用,使得牛蛙幼蛙能快速生长发育成为成蛙。
一种牛蛙幼蛙速生优质养殖方法,其特征在于,包括以下步骤:
1、幼蛙池搭建与栽植水生植物:2月下旬至3月上旬,选用面积在30-100m2的池塘搭建幼蛙池,池堤坡度为1:2-3,水陆面积为1-2:1,池深0.8-1.2m,土池周围设置1.2-1.5m高的防逃网;将饱满且呈黄褐色的凤眼莲种子播种到幼蛙池水中,播种量以确保长成后的凤眼莲面积占整个水面面积的40-60%为准,其后常规管理凤眼莲;
2、蛙卵孵化与管理:4月上中旬,选择面积为20-30m2的水泥池作为一个单位的蛙卵孵化池,使用前每平方米用漂白粉10-15g彻底消毒孵化池,其后放水至水深20-30cm;在亲蛙产出卵后,将受精卵捞起倒入消完毒的孵化池网箱内开始孵化,每平方米放卵量600-800枚;蛙卵孵化期间,在孵化池中央底部架设东森DS-1012Z型超声波投入式震板,调整超声波频率在10-14kHz,每隔6-8h,启动超声波发生器5-9min,直至蛙卵完成孵化;待蛙卵孵化完成后,向孵化池中加入牛蛙蝌蚪健壮液,健壮液用量为4-5L/m3,其后常规管理牛蛙蝌蚪至其完全变态;
3、放养牛蛙幼蛙苗及饲料喂食管理:将已经完全变态的牛蛙幼蛙苗投入幼蛙池中,幼蛙苗放养尾数在100-120只/m2;饲料喂食管理:每250-300只幼蛙搭设1个食台,采用拌虫训食法训练幼蛙摄食静态饲料;具体方法为:开始饲喂时,将人工配合饲料加工成直径小于3mm的颗粒,其后将其与活饲料按1:2-3的比例混合后放入食台;饲喂7-10天后,将人工配合饲料同活饲料的比例调整为1:1;再次饲喂7-10天后,将人工配合饲料同活饲料的比例调整为2-3:1;再次饲喂7-10天后以饲喂人工配合饲料为主,辅助以饲喂植物性饲料,其中人工配合饲料与植物性饲料的配比为8-10:1;其余管理措施同一般牛蛙幼蛙养殖方法;
4、幼蛙分养及成蛙出池:在幼蛙饲养期间,及时将生长较快的大蛙分拣出来,分池分规格饲养,力求同一蛙池饲养的幼蛙大小一致,避免“大吃小”的现象出现,待幼蛙长至成蛙规格时,将其放养到成蛙池中。
所述步骤2中牛蛙蝌蚪健壮液的制备方法为:依次取大黄3-4份、桑叶3-5份、鱼腥草7-8份、牡丹皮6-8份、芦荟10-14份、大蒜5-6份、金银花4-6份、生姜5-6份、胎菊6-8份,将上述成分研磨粉碎后加入60倍重量的无菌水,在36-42℃下浸泡58-66h,其后用600-800目筛过滤得清液,向其中加入大豆异黄酮、白藜芦醇及复硝酚钠至其浓度分别为30-50ppm、20-30ppm及10-15ppm,即可得到牛蛙蝌蚪健壮液。
所述步骤3中的人工配合饲料成分按重量计:玉米40-50、糙米30-40、麦麸10-15、红薯淀粉10-15、水解鱼肉蛋白4-6、晶体氨基酸6-8、猪肺2-3、鱼块1-2、大蒜素1-2、多维2-3、多矿1-2、豆粕20-30、贝壳粉5-8、海草粉4-6、食盐0.5-0.8、干酵母片2-3、枯草芽孢杆菌1-2。
所述步骤3中的人工配合饲料成分按重量计:玉米45、糙米35、麦麸12.5、红薯淀粉12.5、水解鱼肉蛋白5、晶体氨基酸7、猪肺2.5、鱼块1.5、大蒜素1.5、多维2.5、多矿1.5、豆粕25、贝壳粉6.5、海草粉5、食盐0.65、干酵母片2.5、枯草芽孢杆菌1.5。
所述步骤3中的活饲料成分按重量计:黄粉虫2-3、蛆虫4-6、蚯蚓5-8、蚕蛹6-8。
所述步骤3中的活饲料成分按重量计:黄粉虫2.5、蛆虫5、蚯蚓6.5、蚕蛹7。
所述步骤3中的植物性饲料成分按重量计:马铃薯粉10-20、花椰菜5-7、西兰花4-6、洋葱8-12、芡实1-2、藕粉1-2、大蒜2-3、白菜叶5-7。
所述步骤3中的植物性饲料成分按重量计:马铃薯粉15、花椰菜6、西兰花5、洋葱10、芡实1.5、藕粉1.5、大蒜2.5、白菜叶6。
本发明的有益效果:
1、通过采用低频超声波处理蛙卵,成功激活蛙卵成长活性,缩短了蛙卵孵化时间,提高了蛙卵孵化成功率;通过投入牛蛙蝌蚪健壮液,帮助牛蛙蝌蚪在前期获得充足营养,为牛蛙幼苗的成长发育打下良好基础;
2、通过饲喂适合牛蛙幼蛙不同生长阶段的饲料,充分发挥饲料中各成分的营养作用,从而驯化幼蛙摄食静态饲料,节约了饲喂成本;
3、通过栽植具有净水、遮阴作用的凤眼莲,净化了水体环境,降低了牛蛙幼蛙的患病几率,且其本身也可以作为幼蛙的部分食物来源,从各方面增加了牛蛙产量。
具体实施方式
下面结合具体实施例对本发明的技术路线做阐释说明,需要提出的是,以下实施例仅用于解释说明本发明,而不应用于限制本发明。
实施例1
为验证本发明的有益效果,2016年2月,研究人员在江苏省东辛农场做本发明的相关验证试验,牛蛙出池后测定其相关指标,所得结果如表3、4所示;具体方法如下:
1、幼蛙池搭建与栽植水生植物:2月下旬至3月上旬,选用面积在50m2的池塘搭建幼蛙池,池堤坡度为1:2.5,水陆面积为1.5:1,池深1.0m,土池周围设置1.35m高的防逃网;将饱满且呈黄褐色的凤眼莲种子播种到幼蛙池水中,播种量以确保长成后的凤眼莲面积占整个水面面积的40-60%为准,其后常规管理凤眼莲;
2、蛙卵孵化与管理:4月上中旬,选择面积为25m2的水泥池作为一个单位的蛙卵孵化池,使用前每平方米用漂白粉12g彻底消毒孵化池,其后放水至水深25cm;在亲蛙产出卵后,将受精卵捞起倒入消完毒的孵化池网箱内开始孵化,每平方米放卵量700枚;蛙卵孵化期间,在孵化池中央底部架设东森DS-1012Z型超声波投入式震板,调整超声波频率在12kHz,每隔7h,启动超声波发生器7min,直至蛙卵完成孵化;待蛙卵孵化完成后,向孵化池中加入牛蛙蝌蚪健壮液,健壮液用量为4-5L/m3,其后常规管理牛蛙蝌蚪至其完全变态;牛蛙蝌蚪健壮液的制备方法为:依次取大黄3.5份、桑叶4份、鱼腥草7.5份、牡丹皮7份、芦荟12份、大蒜5.5份、金银花5份、生姜5.5份、胎菊7份,将上述成分研磨粉碎后加入60倍重量的无菌水,在36-42℃下浸泡62h,其后用700目筛过滤得清液,向其中加入大豆异黄酮、白藜芦醇及复硝酚钠至其浓度分别为40ppm、25ppm及12ppm,即可得到牛蛙蝌蚪健壮液;
3、放养牛蛙幼蛙苗及饲料喂食管理:将已经完全变态的牛蛙幼蛙苗投入幼蛙池中,幼蛙苗放养尾数在110只/m2;饲料喂食管理:每275只幼蛙搭设1个食台,采用拌虫训食法训练幼蛙摄食静态饲料;具体方法为:开始饲喂时,将人工配合饲料加工成直径小于3mm的颗粒,其后将其与活饲料按1:2.5的比例混合后放入食台;饲喂7-10天后,将人工配合饲料同活饲料的比例调整为1:1;再次饲喂7-10天后,将人工配合饲料同活饲料的比例调整为2.5:1;再次饲喂7-10天后以饲喂人工配合饲料为主,辅助以饲喂植物性饲料,其中人工配合饲料与植物性饲料的配比为9:1;其中人工配合饲料成分按重量计:玉米45、糙米35、麦麸12.5、红薯淀粉12.5、水解鱼肉蛋白5、晶体氨基酸7、猪肺2.5、鱼块1.5、大蒜素1.5、多维2.5、多矿1.5、豆粕25、贝壳粉6.5、海草粉5、食盐0.65、干酵母片2.5、枯草芽孢杆菌1.5;其中活饲料成分按重量计:黄粉虫2.5、蛆虫5、蚯蚓6.5、蚕蛹7;其中植物性饲料成分按重量计:马铃薯粉10-20、花椰菜5-7、西兰花4-6、洋葱8-12、芡实1-2、藕粉1-2、大蒜2-3、白菜叶5-7;其余管理措施同一般牛蛙幼蛙养殖方法;
4、幼蛙分养及成蛙出池:在幼蛙饲养期间,及时将生长较快的大蛙分拣出来,分池分规格饲养,力求同一蛙池饲养的幼蛙大小一致,避免“大吃小”的现象出现,待幼蛙长至成蛙规格时,将其放养到成蛙池中。
实施例2
为验证本发明路线中超声波处理牛蛙卵的有益效果,研究人员在实验室做相关对比验证试验,具体方法如下:
本发明:采用实施例1中的方法步骤,用超声波处理150枚蛙卵,待其孵化后统计孵化成功率及蝌蚪健康程度,结果如表1;
对比:将同一来源的150枚受精卵直接放入孵化池中孵化,统计孵化率及蝌蚪状况,结果如表1。
由表1中,我们可以看出,采用超声波处理蛙卵后,蛙卵孵化率相比于直接孵化,有较大提升,且孵化出的蝌蚪幼苗身体颜色较深,有光泽,活泼好动,摄食游泳能力强,从而能够使得牛蛙幼蛙获得更好的生长发育基础。
实施例3
为验证本发明路线中牛蛙蝌蚪健壮液的有益效果,研究人员在实验室做相关对比验证试验,具体方法如下:
本发明处理:采用实施例1中相同的牛蛙蝌蚪健壮液,在孵化池中饲养刚孵化的150只蝌蚪至其完全变态,统计幼蛙成活率、均重及健康程度,结果如表2;
常规对比:采用常规养殖方法,在孵化池中饲养同一批次孵化的150只蝌蚪至其完全变态,统计幼蛙成活率、均重及健康程度,结果如表2。
由表2可知,采用牛蛙蝌蚪健壮液处理后的幼蛙在成活率和均重上均优于常规养殖的,且幼蛙身体颜色较深,有粘液光泽,活泼好动,摄食能力强,这充分体现了牛蛙蝌蚪健壮液的有益效果。
实施例4
为验证本发明路线中的饲料管理方案的有益效果,除将实施例2中步骤4内的饲料替换为人工配合饲料外,采用实施例1中的方法步骤,养殖10m2的牛蛙幼蛙,牛蛙出池后测定其相关指标,所得结果如表3、4所示。
实施例5
为验证本发明路线中栽植的凤眼莲的有益效果,研究人员除不再栽植凤眼莲外,采用同实施例1中相同的方法步骤,养殖10m2的牛蛙幼蛙,牛蛙出池后测定其相关指标,所得结果如表3、4所示。
实施例6
研究人员在同一养殖厂,采用杨燕公开发表的《牛蛙幼蛙的饲养管理》中的技术方法,养殖10m2的牛蛙幼蛙,牛蛙出池后测定其相关指标,所得结果如表3、4所示。
对比分析表3中的数据,我们可以得出,采用本发明方案养殖的牛蛙幼蛙,在成活率、均重及饲料系数上均优于其他实施例,具体来说:对比实施例1和4,我们发现,实施例1各指标上均优于实施例4,这可能是由于实施例1中采用的饲料管理方案,在幼蛙生长的各阶段,均提供了较佳的营养供给,从而使得其在均重上有较大提升且饲料系数较低;对比实施例1和5,我们发现可能是由于栽植凤眼莲后,能较好的控制水体质量,净化水体环境,且凤眼莲本身亦有杀菌消毒的作用,从而使得实施例1中的各数据结果均优于实施例5;对比实施例1和6,我们发现采用本发明方案养殖的牛蛙幼蛙在各指标上均优于常规饲养的牛蛙幼蛙,这说明本发明实施方案能在同一时间获得较大的牛蛙幼蛙或者达到同样饲养规格的时间较短,且饲料系数低于常规养殖,能大大节约饲料成本,达到牛蛙幼蛙速生优质养殖的目的。
为对比分析各实施例中收获的牛蛙成蛙的肉中的营养成分,采用韩登保等人公开发表的《牛蛙营养成分》一文中的方法,测定各成分指标,所得结果如表4所示。其中,蛋白质含量测定采用微量凯式定氮法;脂肪含量测定采用索式提取法;总糖含量采用3,5-二硝基水杨酸比色法;钙含量采用高锰酸钾滴定法。
分析表4,我们可以看出:经过本发明路线养殖后的牛蛙成蛙在肉质上的各营养指标上均优于其他实施例,最终生产出的牛蛙肉口感更好,营养更加丰富。
以上所述仅为本发明的较佳实施例,凡依本发明申请专利范围所做的均等变化与修饰,皆应属本发明的涵盖范围。
Claims (8)
1.一种牛蛙幼蛙速生优质养殖方法,其特征在于,包括以下步骤:
1、幼蛙池搭建与栽植水生植物:2月下旬至3月上旬,选用面积在30-100m2的池塘搭建幼蛙池,池堤坡度为1:2-3,水陆面积为1-2:1,池深0.8-1.2m,土池周围设置1.2-1.5m高的防逃网;将饱满且呈黄褐色的凤眼莲种子播种到幼蛙池水中,播种量以确保长成后的凤眼莲面积占整个水面面积的40-60%为准,其后常规管理凤眼莲;
2、蛙卵孵化与管理:4月上中旬,选择面积为20-30m2的水泥池作为一个单位的蛙卵孵化池,使用前每平方米用漂白粉10-15g彻底消毒孵化池,其后放水至水深20-30cm;在亲蛙产出卵后,将受精卵捞起倒入消完毒的孵化池网箱内开始孵化,每平方米放卵量600-800枚;蛙卵孵化期间,在孵化池中央底部架设东森DS-1012Z型超声波投入式震板,调整超声波频率在10-14kHz,每隔6-8h,启动超声波发生器5-9min,直至蛙卵完成孵化;待蛙卵孵化完成后,向孵化池中加入牛蛙蝌蚪健壮液,健壮液用量为4-5L/m3,其后常规管理牛蛙蝌蚪至其完全变态;
3、放养牛蛙幼蛙苗及饲料喂食管理:将已经完全变态的牛蛙幼蛙苗投入幼蛙池中,幼蛙苗放养尾数在100-120只/m2;饲料喂食管理:每250-300只幼蛙搭设1个食台,采用拌虫训食法训练幼蛙摄食静态饲料;具体方法为:开始饲喂时,将人工配合饲料加工成直径小于3mm的颗粒,其后将其与活饲料按1:2-3的比例混合后放入食台;饲喂7-10天后,将人工配合饲料同活饲料的比例调整为1:1;再次饲喂7-10天后,将人工配合饲料同活饲料的比例调整为2-3:1;再次饲喂7-10天后以饲喂人工配合饲料为主,辅助以饲喂植物性饲料,其中人工配合饲料与植物性饲料的配比为8-10:1;其余管理措施同一般牛蛙幼蛙养殖方法;
4、幼蛙分养及成蛙出池:在幼蛙饲养期间,及时将生长较快的大蛙分拣出来,分池分规格饲养,力求同一蛙池饲养的幼蛙大小一致,避免“大吃小”的现象出现,待幼蛙长至成蛙规格时,将其放养到成蛙池中。
2.根据权利要求1所述的牛蛙幼蛙速生优质养殖方法,其特征在于,所述步骤2中牛蛙蝌蚪健壮液的制备方法为:依次取大黄3-4份、桑叶3-5份、鱼腥草7-8份、牡丹皮6-8份、芦荟10-14份、大蒜5-6份、金银花4-6份、生姜5-6份、胎菊6-8份,将上述成分研磨粉碎后加入60倍重量的无菌水,在36-42℃下浸泡58-66h,其后用600-800目筛过滤得清液,向其中加入大豆异黄酮、白藜芦醇及复硝酚钠至其浓度分别为30-50ppm、20-30ppm及10-15ppm,即可得到牛蛙蝌蚪健壮液。
3.根据权利要求2所述的牛蛙幼蛙速生优质养殖方法,其特征在于,所述步骤3中的人工配合饲料成分按重量计:玉米40-50、糙米30-40、麦麸10-15、红薯淀粉10-15、水解鱼肉蛋白4-6、晶体氨基酸6-8、猪肺2-3、鱼块1-2、大蒜素1-2、多维2-3、多矿1-2、豆粕20-30、贝壳粉5-8、海草粉4-6、食盐0.5-0.8、干酵母片2-3、枯草芽孢杆菌1-2。
4.根据权利要求2所述的牛蛙幼蛙速生优质养殖方法,其特征在于,所述步骤3中的人工配合饲料成分按重量计:玉米45、糙米35、麦麸12.5、红薯淀粉12.5、水解鱼肉蛋白5、晶体氨基酸7、猪肺2.5、鱼块1.5、大蒜素1.5、多维2.5、多矿1.5、豆粕25、贝壳粉6.5、海草粉5、食盐0.65、干酵母片2.5、枯草芽孢杆菌1.5。
5.根据权利要求2所述的牛蛙幼蛙速生优质养殖方法,其特征在于,所述步骤3中的活饲料成分按重量计:黄粉虫2-3、蛆虫4-6、蚯蚓5-8、蚕蛹6-8。
6.根据权利要求2所述的牛蛙幼蛙速生优质养殖方法,其特征在于,所述步骤3中的活饲料成分按重量计:黄粉虫2.5、蛆虫5、蚯蚓6.5、蚕蛹7。
7.根据权利要求2所述的牛蛙幼蛙速生优质养殖方法,其特征在于,所述步骤3中的植物性饲料成分按重量计:马铃薯粉10-20、花椰菜5-7、西兰花4-6、洋葱8-12、芡实1-2、藕粉1-2、大蒜2-3、白菜叶5-7。
8.根据权利要求2所述的牛蛙幼蛙速生优质养殖方法,其特征在于,所述步骤3中的植物性饲料成分按重量计:马铃薯粉15、花椰菜6、西兰花5、洋葱10、芡实1.5、藕粉1.5、大蒜2.5、白菜叶6。
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Application publication date: 20181218 |